A provocative study suggests that Jupiter’s frozen moon Europa may not only be hospitable, but that life from Earth could be thriving there.

For generations, the search for life beyond Earth has focused on avoiding one of science’s biggest mistakes: claiming a ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.

Astronomer Jon Willis warns that alien signals could be passing Earth unnoticed because humans are searching on the wrong scales, with the wrong assumptions about life and intelligence.

A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.

Steven Spielberg's claims that aliens have already visited Earth have drawn a mixed but pointed scientists' reaction this ...